Results 151 to 160 of about 16,644 (310)
Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function
FEBS Open Bio, EarlyView.We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke +4 more
wiley +1 more source
, 2010 This paper presents tighter performance upper bounds for the bit error probability of terminated convolutional codes combined with QPSK modulation operating over frequency non-selective Nakagami-m fading channels.
R. Liyanapathirana +5 more
core +1 more source
On the Griesmer Bound for Systematic Codes
CoRR, 2013 We generalize the Griesmer bound in the case of systematic codes over a field of size q greater than the distance d of the code. We also generalize the Griesmer bound in the case of any systematic code of distance 2,3,4 and in the case of binary systematic codes of distance up to 6.
openaire +2 more sources
FEBS Open Bio, EarlyView.Activation of the mitochondrial protein OXR1 increases pSyn129 αSynuclein aggregation by lowering ATP levels and altering mitochondrial membrane potential, particularly in response to MSA‐derived fibrils. In contrast, ablation of the ER protein EMC4 enhances autophagic flux and lysosomal clearance, broadly reducing α‐synuclein aggregates.
Sandesh Neupane +11 more
wiley +1 more source
A Novel code-based public-key encryption using semi-MDPC codes
CybersecurityBIKE is a post-quantum public-key encryption scheme based on Moderate-Density Parity-Check (MDPC) codes, gaining significant attention for its small public key and ciphertext sizes.
Qingyu Liu, Lusheng Chen
doaj +1 more source
YIPFα1A expression is regulated by multilayered molecular mechanisms
FEBS Open Bio, EarlyView.YIPFα1A, a five‐pass Golgi protein, is regulated at multiple layers. (1) Rare‐codon enrichment drives translation‐coupled mRNA decay. (2) A proximal 3′‐UTR element stabilizes mRNA. (3) A distal 3′‐UTR element included by alternate poly(A) site usage represses translation, which can be overridden by the proximal 3′‐UTR element.
Tokio Takaji +2 more
wiley +1 more source
Space-Time Codes and Concatenated Channel Codes for Wireless Communications
, 2002 Following a brief historical perspective on channel coding, an introduction to space–time block codes is given. The various space–time codes considered are then concatenated with a range of channel codecs, such as convolutional and block-based turbo ...
Liew, T.H., Hanzo, Lajos
core
FEBS Open Bio, EarlyView.Evolutionary analysis across 32 placental mammals identified positive selection at residues H148 and W149 in the immune receptor FcγR1. Ancestral reconstruction combined with molecular dynamics simulations reveals how these mutations may influence receptor structure and dynamics, providing insight into the evolution of antibody recognition and immune ...
David A. Young +7 more
wiley +1 more source
Upper bounds on minimum distance of nonbinary quantum stabilizer codes [PDF]
, 2005 The most popular class of quantum error correcting codes is stabilizer codes. Binary quantum stabilizer codes have been well studied, and Calderbank, Rains, Shor and Sloane (July 1998) have constructed a table of upper bounds on the minimum distance of ...
Kumar, Santosh
core
Repeated Burst Error Detecting Linear Codes
Ratio Mathematica, 2009 This paper presents lower bounds on the number of parity-check digits required for a linear code that is capable of detecting errors which are ‘m-repeated burst errors’.
B. K. Dass, Rashmi Verma
doaj